In accounting form, negative numbers and scientific notation are not used:

The default display for a machine number:

Display more digits than the default:

Display fewer digits:

Format a complex number:

Format a high-precision number:

Use fewer digits:

Change the display of numbers in a vector:

A matrix:

Change the display of inexact numbers in a mixed expression:

AccountingForm does not have exponents:

NumberForm and PaddedForm have exponents for powers greater than 5:

ScientificForm has a single digit to the left of the decimal:

EngineeringForm uses exponents that are multiples of 3:

Affect the display of numbers in TableForm or MatrixForm:

The typeset form of AccountingForm[expr] is interpreted the same as expr when used in input:

Copy the output and paste it into an input cell. The (2) is interpreted as -2:

When an input evaluates to AccountingForm[expr], AccountingForm does not appear in the output:

Out is assigned the value 1.`*^7, not AccountingForm[10.^7]:

Placeholder zeros may be needed if the requested precision is small:

Even when an output omits AccountingForm from the top level, it is not stripped from subexpressions:

The output does not have AccountingForm in it:

However, the variable e does have AccountingForm in it, which may affect subsequent evaluations:

The product is not evaluated due to the intervening AccountingForm:

Assign variables first and then apply AccountingForm to the result to maintain computability: